Improvement in bottoms for beds



L. TRABER.

v Bottoms for Beds.

No.155,998 Patented Oct. 13,1874.

Wilne ssea: J12 venZon I UNITED STATES PA ENT. Orrron.

LAFAYETTE TRABEB, OF KANSAS CITY, MISSOURI.

IMPROVEMENT IN BOTTOMS FOR BEDS.

Specification forming part of Letters Patent No. 155,998, dated October13, 1874; application filed January 31, 1874.

To all whom it may concern Be it known that I, LAFAYETTE TRADER, ofKansas City, county of Jackson and State of Missouri, have inventedcertain new and useful Improvements in Bottoms for Beds, of which thefollowing is a specification:

The nature of my invention consists in the construction and arrangementof a bed-bottom, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawing, in whichFigure 1 is a plan view of my entire bedbottom. Fig. 2 is a longitudinalsection of the same through the line a: :20, Fig. 1'; and Fig. 3 is adetail view of the device whereby the main bed-cord is prevented fromcoming loose, and by which the slack of the cord is firmly secured whentaken up, when the cording or tightening is done.

A A represent the sides, and B B the end pieces, of a frame, which mayeither be or form a part of the bedstead, or be made separate, andattached in the same. To the inner sides of the side pieces A A, at ornear one end, are attached brackets a a, in which is placed a cross-bar,0, having in its inner edge a series of eye-screws, b b, fastened atregular and suitable intervals. In each of these eye-screws is attacheda pulley, by means of a suitable clevis or loop. At the other end of theframe A B is placed a cross-shaft, D, in bearings formed in the sidepieces A A. This shaft D is on one side provided with eyes or loops 0 eat suitable intervals. E represents a loose cross-bar, having pulleys dattached to it along one edge by means of eye-screws, said pulleyscorresponding innumber and position with the eyes or loops 0 on theshaft D. Around the pulleys d, and through the eyes 6 is passed a cord,f, back and forth, as shown in Fig. 1, and the ends of said cord aretied together. Along the other or inner edge of the bar E are secured anumber of small wiresprings, h h, each of which is made of a singlepiece of wire bent in the middle, and forming a coil on each side of thecenter, after which the ends of the wire are inserted through the bar,and clinched on the opposite edge. In the middle of each of the springshis attached a pulley, W, by means of a suitable clevis or loop. mrepresents the main bed-cord, one end of which is securely tied aroundthe put ley at at one end of the bar 0, after which the cord is passedback and forth alternately around a pulley, d and a pulley, d. The lastpulley around which the cord m passes has a toothed eccentric, i,pivoted in its clevis, which, by the tension of the cord, is drawnagainst it and the pulley, thereby holding the cord tightly, andpreventing its slipping. Upon one end of the sh aft D is attached acog-wheel, n, which gears with a worm upon a short vertical shaft, 19,arranged in suitable hearings on the inner side of one of the sidepieces A. The upper end of the shaft 12 is made square, to fit thesquare barrel of a key, H, by means of which it is turned, but it may beturned by means of an ordinary wrench. The main bedcord m being passedaround the pulleys d and d, as above described, it is tightened by handas much as possible. The key H is then applied on the worm-shaft p, andturned, which revolves the shaft D, and, by means of the cord f, makesthe whole bed bottom perfectly taut, and yet it retains sufiicientelasticity to make a perfectly easy and comfortable bedbottom.

It can readily be taken apart for shipment, and is durable, and notliable to get out of order.

If it should sag down by usage, it can very easily be tightened again.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

l. The cross-bar E, provided with springs h h, and pulleys d 01 incombination with the cross-bar G, having pulleysd d, and the bedcord m,all substantially as and for the pur poses herein set forth.

2. The pulleys d al attached to the cross bar E, in combination with theshaft D, pro vided with eyes 6 e, and the cord f, passing around thepulleys and through the eyes, substant'ially as and for the purposesherein set 'forth.

' In testimony that I claim the foregoing as my intention I hereuntoaffix my signature this 26th day of January, 1874.

LAFAYETTE TRABER.

Witnesses:

JOHN FREELANDs, J AS. R. RIGGENS.

